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Tracer
DO PockeTester
TM
Code 1761
FILL -
Before first use
POLARIZE -
Weekly
CALIBRATE -
Daily
See Pages 9-12
Water Testing Leader Since 1919!

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Summary of Contents for LaMotte Tracer DO PockeTester

  • Page 1 Tracer DO PockeTester Code 1761 FILL - Before first use POLARIZE - Weekly CALIBRATE - Daily See Pages 9-12 Water Testing Leader Since 1919!
  • Page 2 WARNING! This set contains chemicals that may be harmful if misued. Read cautions on individual containers carefully. Not to be used by children except under adult supervision.
  • Page 3: Table Of Contents

    TRACER DISSOLVED OXYGEN • CODE 1761 Introduction ..................4 Specifi cations ..................4 Contents ..................4 Parts & Accessories ................5 Meter Description Front Panel Description ............... 5 Display ..................5 Operation Filling the Electrode ..............6 Powering the TRACER ..............6 Startup Polarization Period ............6 Turn-on Diagnostics ..............
  • Page 4: Introduction

    INTRODUCTION Congratulations on your purchase of the Dissolved Oxygen/Temperature TRACER. Units of measure are % saturation, mg/L or ppm for dissolved oxygen and C° or F° for temperature. Advanced features include data hold, 25 point memory, auto shut off, automatic temperature compensation, and salinity/altitude compensation. Careful use and maintenance will provide years of reliable service.
  • Page 5: Parts & Accessories

    PARTS & ACCESSORIES DO Replacement Sensor Kit (sensor module, Code 1762 membrane cap assembly, electrolyte solution) DO Membrane Cap Kit (6 membrane cap assemblies, Code 1761M electrolyte solution, Polishing Strips) DO Extension Cable, 1 meter (with probe guard and weight) Code 1763 DO Extension Cable, 1 meter (with probe guard and weight) Code 1764 METER DESCRIPTION Front Panel Description...
  • Page 6: Operation

    OPERATION Filling the Electrode The electrode is shipped dry and requires f lling with the supplied electrolyte solution before the f rst use. The membrane should be in place and does not need to be replaced. Follow the procedure on page 9 for f lling the membrane cap. Powering the Tracer The Tracer uses four (4) CR2032 Lithium Ion Batteries.
  • Page 7: Changing Salinity Compensation

    Changing the Salinity Compensation With the Tracer ON, momentarily press CAL twice in quick succession. ‘SAL’ will be shown on the lower part of the display. Momentary press MODE. Each press of MODE increases the salinity compensation by 1ppt (part per thousand); the available range is 0 to 50ppt. Momentarily press CAL to save the compensation setting and return to the normal measurement mode.
  • Page 8: Auto-Power Off Feature

    Auto-Power Off Feature The auto power off feature automatically shuts the meter off 10 minutes after the most recent button press. To disable this feature, refer to the Disable Auto-Power Off section. Disable Auto-Power Off Feature With the meter ON, momentarily press CAL, then quickly press and hold both MODE and ON/OFF until ‘oFF’...
  • Page 9: Set Up

    SET UP Membrane Cap Assembly - Filling and Replacement The electrode is shipped dry and requires f lling with the supplied electrolyte solution before the f rst use. The membrane should be in place and does not need to be replaced. Important Note: Do not touch the membrane as skin oils will interfere with the oxygen permeability rate of the membrane.
  • Page 10: Polarization

    Do not move the membrane cap assembly. Dip the electrode into the assembly and remove it. Repeat this step several times. With each dip, progressively push the electrode deeper into the electrode solution in the assembly. This dipping technique will minimize the introduction of air bubbles into the electrolyte solution.
  • Page 11: Optional Zero Oxygen Calibration

    Moisten the sponge in the electrode cap with distilled water or tap water. Do not soak the sponge. Replace the electrode cap on the electrode. There must be an air gap between the membrane and the sponge. Wait until the reading stabilizes. Press and hold CAL until ‘CAL’ is shown on the display.
  • Page 12: Dissolved Oxygen Measurement

    DISSOLVED OXYGEN MEASUREMENT (Be sure the electrode is f lled and fully polarized. Calibrate daily.) Cover the electrode with the electrode cap. The sponge in the electrode cap should be moistened (not soaked) with distilled water or tap water. Press ON/OFF to turn the meter ON. The meter will self calibrate. Press and hold MODE to select the desired unit of measure.
  • Page 13: Operational Matrix

    OPERATIONAL MATRIX Function / Power Mode Required Button Comments Resulting Status Setting Press Sequence Action ON/OFF Momentary press of the ON/OFF button Water Saturated Place electrode in Air Calibration electrode cap. Press & hold CAL button for 2 seconds. Zero Place electrode in Also works Calibration...
  • Page 14 Function / Power Mode Required Button Comments Resulting Status Setting Press Sequence Action Change Press and hold Measurement MODE button for Mode at least two seconds. Modes will scroll until button is released. Enter Salinity Press and release ‘SAL’ is Compensation the CAL button displayed.
  • Page 15 Function / Power Mode Required Button Comments Resulting Status Setting Press Sequence Action Changing Momentary press of Each button- Altitude the MODE button. press increases Compensation altitude by 1,000 ft. The value cycles from 0 to 20,000 ft. Exit Altitude Momentary press It is necessary Compensation...
  • Page 16: Troubleshooting

    TROUBLESHOOTING - If the display appears to be frozen, it is possible that the Data Hold mode has been inadvertently activated. This is indicated by ‘HOLD’ in the bottom left of the display. To exit the Data Hold mode press MODE or turn the meter off and back on again.
  • Page 17: Maintenance Battery Replacement

    MAINTENANCE Battery Replacement Twist off the battery compartment cover. Holding the battery housing in place with a f nger, pull out the battery carrier using the two small tabs. Replace the four (4) CR2032 batteries observing proper polarity. Replace the battery carrier, reattach the battery compartment cap and tighten securely.
  • Page 18: Electrode Storage

    Electrode Storage Store the TRACER with the Electrode Storage Cap in place. The sponge in the cap should always be moist without excess liquid. Electrode Cleaning Recommendations Contaminant Cleaning Solution Procedure Salt build-up Deionized water Soak in 20% or weaker Acetic Acid solution for 1 minute.
  • Page 19: Short Form Instructions (Back Cover)

    Short Form Instructions Fill the membrane cap assembly before the f rst use. Follow Set Up instructions before the f rst use. Read the entire manual before the f rst use. Calibrate daily. Polarize weekly. Dissolved Oxygen Measurement Procedure Press ON/OFF button to turn meter ON. Place TRACER in sample.

This manual is also suitable for:

1761

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